When going up a hill car loses acceleration?

1998 NISSAN SENTRA
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LOSTFIREMAN
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Engine problem
1998 Nissan Sentra Manual 200000 miles
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When going up a hill car loses acceleration, even after down shift, slows down to about 50,rpms race not a problem at a stop and getting on pedal. Never a problem before. started around thanksgiving and has gradually gotten worse. same gas milage as before.
Dec 12, 2007 at 7:47 PM
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RASMATAZ
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Have the exhaust system inspected could be the catalytic converter is clogged-up, also the fuel pressure.
Dec 12, 2007 at 7:49 PM
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STRAILER
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I agree with RASMATAZ, it sounds like the catalytic converter is starting to clog up but to be sure please use this guide below to confirm the issue.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

and this guide can help as well

https://www.2carpros.com/articles/engine-has-low-power-output

Here is an images of the exhaust system so you can see where the catalytic converter is for testing. It is in the middle of the system. Check out the images (below). Let us know how it goes

Image (Click to enlarge)
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Aug 27, 2024 at 2:16 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.